CRASY: mass- or electron-correlated rotational alignment spectroscopy.
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Science (New York, N.Y.), ISSN: 1095-9203, Vol: 333, Issue: 6045, Page: 1011-5
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- Multidisciplinary; NUCLEAR-MAGNETIC-RESONANCE; 2-DIMENSIONAL SPECTROSCOPY; COHERENCE SPECTROSCOPY; PROTON-TRANSFER; MOLECULES; CONSTANTS; NMR; FRAME
Rotational spectra have traditionally been measured without a concurrent means of differentiating the molecular constituents of the sample. Here, we present an all-optical multipulse experiment that allows the correlated measurement of rotational and mass or photoelectron spectra by combining Fourier transform rotational coherence spectroscopy with resonance-enhanced multiphoton ionization. We demonstrate the power of this method with the determination of ground-state rotational constants and fragmentation channels for 10 different isotopes in a natural carbon disulfide sample. Three of the reported rotational constants were previously inaccessible by conventional spectroscopic techniques.